public class Example3_7 {
   public static void main (String args[]) {
      int sum=0,i,j;
      for ( i=1;i<=10;i++) {
        if(i%2==0) {
          continue;
          }
        sum=sum+i;
      }
      System.out.println("sum="+sum);
      for(j=2;j<=100;j++) {
      for( i=2;i<=j/2;i++) {
        if (j%i==0)
           break;
      }
      if(i>j/2) {
        System.out.println(""+j+"是素数");
      }
   }
 }
}


